2 answers:
This is the assignment of a number to a characteristic of an object or event, which can be compared with other objects or events.
Measurement is the act of determining a target size, length, weight, capacity or other aspect
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Compressional waves can travel through all states of matter.
Answer:
b. negative
Explanation:
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B low frequency it is the lowest frequency
Answer:
Yes
Explanation:
Because if you push it, the skateboard has kinetic/potential energy.
The observer can conclude that the sound is moving away from them and that its speed is increasing.
